Restricting calf presence without suckling shortens postpartum interval to first ovulation

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dc.contributor.author Hoffman, D.P.
dc.contributor.author Stevenson, Jeffrey S.
dc.date.accessioned 2010-09-17T20:57:22Z
dc.date.available 2010-09-17T20:57:22Z
dc.date.issued 2010-09-17T20:57:22Z
dc.identifier.uri http://hdl.handle.net/2097/4985
dc.description.abstract The suckling interaction between a cow and her calf is one of the factors that maintains a cow in postpartum anestrus (the period between calving and the beginning of first estrous cycle). Anestrus continues if the cow perceives that her calf is attempting to nurse, even when the mammary glands have been denervated or removed. Cross-fostering of an alien calf to a cow fails to maintain postpartum anestrus, indicating that cow-calf recognition is also a factor. We restricted calves so they could nuzzle the cow's head and neck but could not suckle. Compared with weaning calves 1 wk postpartum, restriction lengthened the interval to first postpartum ovulation but less than with normal suckling. These results suggest that maintaining cow-calf recognition in the absence of the suckling stimulus is an essential part of the nursing mechanism that prolongs anovulation. Thus, blocking the cow's recognition of her calf might further decrease the postpartum interval to first ovulation. en_US
dc.publisher Kansas State University. Agricultural Experiment Station and Cooperative Extension Service en_US
dc.relation.isPartOf Cattlemen’s Day, 1994 en_US
dc.relation.isPartOf Kansas Agricultural Experiment Station contribution; no. 94-373-S en_US
dc.relation.isPartOf Report of progress (Kansas State University. Agricultural Experiment Station and Cooperative Extension Service); 704 en_US
dc.subject Beef en_US
dc.subject Suckling en_US
dc.subject Anestrus en_US
dc.subject Estrous cycles en_US
dc.subject Postpartum en_US
dc.title Restricting calf presence without suckling shortens postpartum interval to first ovulation en_US
dc.type Conference paper en_US
dc.date.published 1994 en_US
dc.citation.epage 112 en_US
dc.citation.spage 111 en_US
dc.description.conference Cattlemen's Day, 1994, Kansas State University, Manhattan, KS, March 4, 1994 en_US
dc.contributor.authoreid jss en_US


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